diff --git a/libraries/animation/src/AnimSkeleton.cpp b/libraries/animation/src/AnimSkeleton.cpp
index 8dcb2157c5..72fd806a1d 100644
--- a/libraries/animation/src/AnimSkeleton.cpp
+++ b/libraries/animation/src/AnimSkeleton.cpp
@@ -39,8 +39,8 @@ int AnimSkeleton::nameToJointIndex(const QString& jointName) const {
     return -1;
 }
 
-size_t AnimSkeleton::getNumJoints() const {
-    return _joints.size();
+int AnimSkeleton::getNumJoints() const {
+    return (int)_joints.size();
 }
 
 const AnimPose& AnimSkeleton::getAbsoluteBindPose(int jointIndex) const {
diff --git a/libraries/animation/src/AnimSkeleton.h b/libraries/animation/src/AnimSkeleton.h
index 73e31d090a..7312fea6b1 100644
--- a/libraries/animation/src/AnimSkeleton.h
+++ b/libraries/animation/src/AnimSkeleton.h
@@ -27,7 +27,7 @@ public:
     AnimSkeleton(const std::vector<FBXJoint>& joints);
     int nameToJointIndex(const QString& jointName) const;
     const QString& getJointName(int jointIndex) const;
-    size_t getNumJoints() const;
+    int getNumJoints() const;
 
     // absolute pose, not relative to parent
     const AnimPose& getAbsoluteBindPose(int jointIndex) const;
diff --git a/libraries/animation/src/Rig.cpp b/libraries/animation/src/Rig.cpp
index 950ac58ae2..56135ce821 100644
--- a/libraries/animation/src/Rig.cpp
+++ b/libraries/animation/src/Rig.cpp
@@ -233,8 +233,8 @@ bool Rig::jointStatesEmpty() {
     return _internalPoseSet._relativePoses.empty();
 }
 
-size_t Rig::getJointStateCount() const {
-    return _internalPoseSet._relativePoses.size();
+int Rig::getJointStateCount() const {
+    return (int)_internalPoseSet._relativePoses.size();
 }
 
 int Rig::indexOfJoint(const QString& jointName) const {
diff --git a/libraries/animation/src/Rig.h b/libraries/animation/src/Rig.h
index 8d8d425112..e3ec5d18cf 100644
--- a/libraries/animation/src/Rig.h
+++ b/libraries/animation/src/Rig.h
@@ -89,7 +89,7 @@ public:
     void initJointStates(const FBXGeometry& geometry, const glm::mat4& modelOffset);
     void reset(const FBXGeometry& geometry);
     bool jointStatesEmpty();
-    size_t getJointStateCount() const;
+    int getJointStateCount() const;
     int indexOfJoint(const QString& jointName) const;
 
     void setModelOffset(const glm::mat4& modelOffsetMat);